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Abstract and Manuscript Management System - Abstract Detail |
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This Paper relates to the Topics Laboratory Automation and Calibration Processes . The intended audience will be from Mass Calibration Laboratories in the field of high accuracy mass determination. The presented Robot System CCR10-1000 is designed for fully automatic mass determination in a mass range from 1kg down to 1mg. The Robot System contents of two Mass Comparators each equipped with a magazine for storage of weights. The gantry Robot system is a 3-axis system with an additional axis of rotation where a unique weight handler system is installed. This weight handler system consists of 2 special weight holders for each Mass Comparator. Each couple of weight holders is fixed with an angle of 90 degrees against each other. One of each couple of weight holders is designed to take a sample of up to 4 weights. The weight sample will be fully automatically combined of single weights from the magazine, depending of the chosen mass determination. The sample weights are loaded on a special pan at the magazine by the single weight holder, before they are taken all together by the second so called multi weight holder. The test weight, or sample, remains on the gripper during measurement of the reference weight and the opposite way. Each specially developed Mass Comparator has a fin designed weighing pan which is able to carry a sample up to 4 weights. This allows disseminating the mass scale from 1kg down to 1mg controlled by special application software without any external intervention. The 1kg Mass Comparator with a readability of 1µg has a weighing range from 1kg down to 10g, the 10g Mass Comparator with a readability of 0,1µg completes the range down to 1mg. The reproducibility of the installed Mass Comparators allows calibrating weights or weight sets with an accuracy of highest E1 level. For each Mass Comparator a special rotating double magazine is designed to carry complete weight sets. During mass determination the outer magazine can be unloaded and loaded without interruption of the mass determination procedure inside the enclosure. A detailed description of the technical and metrological parameters as well as measurement results will be presented. |
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